/*
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

// $Id: ViewMap.java,v 1.7 2005/02/16 11:28:14 jesper Exp $
package com.supermap.desktop.ui.docking.util;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import com.supermap.desktop.ui.docking.View;

/**
 * A map of views that handles view serialization by assigning an integer id to each view. The id is unique for each view in the map. To guarantee serialization
 * compatibility a view id must remain constant.
 *
 * @author $Author: jesper $
 * @version $Revision: 1.7 $
 */
public class ViewMap extends AbstractViewMap {
	/**
	 * Constructor.
	 */
	public ViewMap() {
		// do nothing
	}

	/**
	 * Utility constructor that creates a map with a number of views. A view gets it's index in the array as id.
	 *
	 * @param views
	 *            the views to add to the map
	 */
	public ViewMap(View[] views) {
		for (int i = 0; i < views.length; i++)
			addView(i, views[i]);
	}

	/**
	 * Adds a view to the map.
	 *
	 * @param id
	 *            the view id
	 * @param view
	 *            the view
	 */
	public void addView(int id, View view) {
		addView(new Integer(id), view);
	}

	/**
	 * Removes a view with a specific id from the map.
	 *
	 * @param id
	 *            the view id
	 */
	public void removeView(int id) {
		removeView(new Integer(id));
	}

	/**
	 * Returns the view with a specific id.
	 *
	 * @param id
	 *            the view id
	 * @return the view with the id
	 */
	public View getView(int id) {
		return getView(new Integer(id));
	}

	@Override
	protected void writeViewId(Object id, ObjectOutputStream out) throws IOException {
		out.writeInt(((Integer) id).intValue());
	}

	@Override
	protected Object readViewId(ObjectInputStream in) throws IOException {
		return new Integer(in.readInt());
	}

}
